New syllabus of class 12 CBSE 2020-21 (Removed topic) :-
Physics :-
chapter 1:- electrostatic charges and fields
Removed :- uniformly charge thin spherical shell.
chapter 2 :- electrostatic potential and capacitance
Removed :- nothing
chapter 3:- current electricity
Removed :- series and parallel combination of resistors . carbon resistor and colour code for carbon resistors.
chapter 4;- moving charges and magnetism
Removed :- cyclotron
chapter 5:- magnetism and matter
Removed :- magnetic field intensity due to a magnetic dipole bar magnet along its axis and perpendicullar to its axis,torque on a magnmetic dipole bar magnet in a uniform magnetic field.
par ,dia and ferro magnetic substances ,with examples electromagnetics and factors affecting their strengths , paramagnet magnet .
chapter 6:- removed
chapter 7:- alternating curent
Removed :- wattless current.
chapter 8:- electromagnetic waves
Removed :-Displacement current .
chapter 9: - Ray optics and optical instrument
Removed :- reflection of light ,spherical minors mirror formula scattering of light .
chapter 10:- wave optics
Removed :- resolving power of microscope and astonomical telescope,polaristaion,plane polarised,brewster`s law,users of plane polarised light and polaroids
chapter 11:- dual nature of radiation and matter
Removed :-davission and germer experiment
chapter 12:- Removed
chapter 13:-Nuclei
Removed :- radioactivity ,alpha, beta ,gamma particles rays and their properties radio active decay , half life and mean life
binding energy per nucleon and its variation with its mass number .
chapter 14:- Semi condutors electronicsRemoved :-zener diode and their characteristics , zenerdiode as a voltage regulator----------------------
chemistry
chapter 1:- solid state
Removed :- electrical and magnetic properties band theory of metals conductors ,semiconductors and n and p type semi conductors
chapter 2:- solutions
Removed :- abonrmal molecular mass ,van`t hoff factor
chapter 3:- electrochemistry
Removed :- lead accumlator , fuel cells ,corrosion , law of electrolysis dry cell electrolytic cell and galvaniccells.
chapter 4:- chemical kinetics
Removed :- concept of collosion theory (elementry idea no mathematical treatment ) activation energy , arhenius equation.
chapter 5:- surface chemistry
Removed :- emulsion - types of emulsions , catalysis homogenous and heterogeneous activity and selectivity of solid catalysts enzyme catalysis
chapter 6:- generel principles and processes of isolation of elelments
Removed :- entire
chapter 7 :- p block block element
Removed :-preparation and properties of phosphine ,sulphuric acid industrial process of manufacture oxides of nitrogen phosphours allotropic forms,compounds of phosphours preparation and properties of halides and oxo acid acids
chapter 8:- d blockand fblock element
Removed :-chemical reactivity of lanthanoids actinoids enlectronic confuguration oxidation state and comparision with lanthanoids perparation and propertiesof KMNO4 and K2Cr2O7
chapter 9:- coordination compound
Removed :- struture and stereoisomersm importance of coordinate compond
chapter 10:-haloalkanes and haloarenes
Removed :- uses of enviormental effects of dichloromethane trichloromethane tetrachloromethane idoforms freons DDT.
chapter 11:- alcohols, phenols and ethers
Removed :- uses with special reference to methanol andethanol
chapter 12:- aldehydes,ketones and carboxlyic acid
Removed :- ---
chapter 13:- amines
Removed :- diazonium salt spreparation chemical reaction and importance in synthetic organic chemistry
chapter 14 :- biomolecules
Removed :-oligosaccharides importance of carbo hydrate vitamin classifiication and functions enzymes hormones elementray idea excluding structure.
chapter 15, 16 :- polymer and chemistry in every day life
Removed :- entire
Maths:-
Unit 1: Relations and Functions
Chapter 1:- Relations and Functions
- Composite functions, inverse of a function.
Chapter 2. Inverse Trigonometric Functions
- Graphs of inverse trigonometric functions
- Elementary properties of inverse trigonometric functions
Unit 2: Algebra
Chapter 1 :- Matrices
- Existence of non-zero matrices whose product is the zero matrix.
- Concept of elementary row and column operations.
- Proof of the uniqueness of inverse, if it exists.
Chapter 2:- Determinants
- Properties of determinants
- Consistency, inconsistency and number of solutions of system of linear equations by examples
Unit 3: Calculus
Chapter 1 :- Continuity and Differentiability
- Rolle’s and Lagrange's Mean Value Theorems (without proof) and their geometric interpretation.
Chapter 2:- Applications of Derivatives
- Rate of change of bodies, use of derivatives in approximation
Chapter 3. :- Integrals
- Definite integrals as a limit of a sum
Chapter 4. :- Applications of the Integrals
- Area between any of the two above said curves
Chapter 5 :- Differential Equations
- Formation of differential equation whose general solution is given.
- Solutions of linear differential equation of the type:
dx/dy + px = q, where p and q are function of y or constant.
Unit-IV: Vectors and Three- Dimensional Geometry
Chapter 1 :- Vectors
- scalar triple product of vectors.
Chapter 2 :- Three - dimensional Geometry
Angle between (i) two lines, (ii) two planes, (iii) a line and a plane
Unit-V: Linear Programming
Chapter 1 :- Linear Programming
- mathematical formulation of L.P. problems
- (unbounded)
Unit-VI: Probability
Chapter 1 :- Probability
-
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